Keeping yachts free of mildew and mold especially during winter is not easy, which is why it is important to have a dehumidifier. Mold is a major problem for yachts as it thrives in moist areas that have stale air, which is typical of a yacht environment. It is possible to prevent air from becoming stale by ensuring there is good ventilation. But even when there is good ventilation, it is still important to have a dehumidifier, since ocean air is very humid. Damp air that gets into the yacht is moist and it usually condenses on the cool surfaces. This can cause corrosion on electronic components, unsightly stains and water damage to your furnishings and upholstery. Mains powered dehumidifiers are the best option to keep the yacht interior dry. The two main types of dehumidifiers that are used include desiccant and refrigeration (compressor) models.

There are various preventative measures:

  • Moisture Control Products
    Products such as silica gel can be placed in critical areas of the yacht in bowls or bags to prevent moisture from seeping into electronic compartments, carpeting and upholstery. They can be placed in areas that are prone to moisture including hatches, vents and windows. Small cupboard dehumidifiers can fulfill the same function in a more efficient, attractive manner.
  • Ventilating the Area
    Opening the hatch when the yacht is moving at slow speeds is an effective way of ventilating it. This allows air to circulate within the cabin and the humid air that is inside is exchanged with the air outside. A marine fan can also be effective in increasing ventilation in the yacht.
  • Using Dehumidifiers
    When the interior of the yacht is very moist, the most effective way of getting rid of the moisture is by using a dehumidifier. This is essential after the yacht is stored during winter. The dehumidifier is placed in the yacht and allowed to run while the doors remain closed.

When selecting dehumidifiers for yachts, it is important to consider their extraction capacity. The dehumidifier is supposed to handle the volume of air found in the yacht. The unit also needs to function effectively at a temperature without the risk of icing up. The best options are refrigerant machines that have full reversing defrost systems. Units that are desiccant based are also effective in getting rid of moisture in yachts. The refrigeration type dehumidifiers function better in places that have high temperatures and a lot of humidity. Desiccant dehumidifiers function well in areas that have lower temperatures and are therefore are suitable to use during winter. If refrigeration type dehumidifiers are used in areas that have very low temperatures, they tend to ice up. When the dehumidifier freezes, there are various features that are included to deal with the problem. Some of them switch off while others are able to melt the ice. Refrigeration dehumidifiers do not warm up the air as much as the desiccant ones. This is one of the considerations to keep in mind when choosing dehumidifiers to use on a yacht during winter.